2 Meter / 440 MHz

Copper J-Pole

I recently dug through all my old gear and found a Kenwood TM 241-A and a TM-441-A. I wanted to be able to check into my local club's SUnday eveing nets without having to make sure the HT was charged up. I was using a simple home breew 1/4 wave 2m veritical like the one descibed here, but I wanted something a little more robust and could handle 440 as well. So, after some google searches, I found plans by KC8AON for a J-Pole.

KC8AON's QRP PROJECTS

2 METER/440 MHZ COPPER J-POLE ANTENNA

OPTIMIZED FOR 2 METERS, AND COVERS 440 TOO

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BUILT PER DIRECTIONS IT COVERS ENTIRE 2M BAND !


THIS ANTENNA IS BUILT ALMOST ENTIRELY OF HARDWARE STORE ITEMS WITH THE EXCEPTION OF THE FEEDPOINT CONNECTOR AND WORKS AS WELL OR BETTER THAN MOST COMMERCIAL ANTENNAS - AND IT COST LESS TOO ! MOUNT IT TO A MAST BY CLAMPING THE BOTTOM SECTION TO THE MAST WITH 2 OR 3 STAINLESS STEEL HOSE CLAMPS. SUPPLY A CHOKE BALUN AT THE FEEDPOINT BY WINDING THE COAX INTO A COIL ABOUT 4" IN DIAMETER AND ABOUT 6 TURNS RIGHT AT THE FEEDPOINT TO KEEP RF OF THE SHIELD OF THE COAX.

SOME FOLKS HAVE EVEN USED THIS AS A REPEATER ANTENNA WITH GOOD RESULTS !